In this post, we’ll look at the different ways that some of the most popular wearables implement haptics. Outside of the Apple Watch, most wearables use a simple eccentric rotating mass motor for haptic feedback.

Apple Watch

The Apple Watch was first introduced in the fall of 2014 and has since become the world’s best selling wearable device. It was Apple’s first introduction of its “Taptic Engine”, which provides haptic feedback for alerts and notifications. While the design of the Taptic Engine module is proprietary, it is likely a customized linear resonant actuator.